I've never been attracted to men, and I'm still not.  People keep bringing that matter up, so I'm forced to think about it more than I normally would.  Could I be?  Is it another step in my transition?  If it were to happen what sort of guy would turn me on?  That sort of questioning....
I guy approached me on the dance floor one evening and planted a kiss on my lips.....  What was my reaction?  Well, it was strange, I mean, feeling those prickly whiskers, and seeing his big mischievous smile.  I was not aroused by it, but I felt rather flattered that someone would do that just based on my external appearance, and for that reason not totally unwelcome.
Still, I'm attracted to and aroused by women, and I consider myself a lez, now.  Like it or not, society will see my DW and me as a lesbian couple.  So even if I successfully hide my being transsexual, I'll still be subject to the disapproval of a large segment of society.  
Having said all that, I am still trying to sort out my sexuality in practice.  It's not been easy for me to make the switch from male orgasm to female orgasm.  Best I can figure out, they are quite different by nature.  The last male orgasm I had was a forced affair, and quite underwhelming.  I've experienced the rise to a female orgasm, which was wonderful, but didn't achieve climax, to use an old fashioned word.  Would intercourse with a man bring me all the way there?  I have no idea.  
 
Re-examining one's sexuality during transition is just another growth item that needs attention (no pun intended, hee hee).  
Clara